<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Arabidopsis clipping/fertilization data</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="R.css" />
</head><body>

<table width="100%" summary="page for Arabidopsis"><tr><td>Arabidopsis</td><td style="text-align: right;">R Documentation</td></tr></table>

<h2>
Arabidopsis clipping/fertilization data
</h2>

<h3>Description</h3>

<p>Data on genetic variation in responses to fertilization
and simulated herbivory in <em>Arabidopsis</em>
</p>


<h3>Usage</h3>

<pre>data("Arabidopsis")</pre>


<h3>Format</h3>

<p>A data frame with 625 observations on the following 8 variables.
</p>

<dl>
<dt><code>reg</code></dt><dd><p>region: a factor with 3 levels <code>NL</code>
(Netherlands), <code>SP</code> (Spain), <code>SW</code> (Sweden)</p>
</dd>
<dt><code>popu</code></dt><dd><p>population: a factor with the form <code>n.R</code>
representing a population in region <code>R</code></p>
</dd>
<dt><code>gen</code></dt><dd><p>genotype: a factor with 24 (numeric-valued) levels</p>
</dd>
<dt><code>rack</code></dt><dd><p>a nuisance factor with 2 levels, one for
each of two greenhouse racks</p>
</dd>
<dt><code>nutrient</code></dt><dd><p>fertilization treatment/nutrient level (1,
minimal nutrients or 8, added nutrients)</p>
</dd>
<dt><code>amd</code></dt><dd><p>simulated herbivory or &quot;clipping&quot; (apical meristem
damage): <code>unclipped</code> (baseline) or <code>clipped</code></p>
</dd>
<dt><code>status</code></dt><dd><p>a nuisance factor for germination method
(<code>Normal</code>, <code>Petri.Plate</code>, or <code>Transplant</code>)</p>
</dd>
<dt><code>total.fruits</code></dt><dd><p>total fruit set per plant (integer)</p>
</dd>
</dl>



<h3>Source</h3>

<p>From Josh Banta
</p>


<h3>References</h3>

<p>Joshua A. Banta, Martin H. H Stevens, and Massimo Pigliucci (2010)
A comprehensive test of the 'limiting resources' framework applied to
plant tolerance to apical meristem damage.
<em>Oikos</em> <b>119</b>(2), 359&ndash;369;
<a href="http://dx.doi.org/10.1111/j.1600-0706.2009.17726.x">http://dx.doi.org/10.1111/j.1600-0706.2009.17726.x</a>
</p>


<h3>Examples</h3>

<pre>
data(Arabidopsis)
summary(Arabidopsis[,"total.fruits"])
table(gsub("[0-9].","",levels(Arabidopsis[,"popu"])))
library(lattice)
stripplot(log(total.fruits+1) ~ amd|nutrient, data = Arabidopsis,
          groups = gen,
          strip=strip.custom(strip.names=c(TRUE,TRUE)),
          type=c('p','a'), ## points and panel-average value --
          ## see ?panel.xyplot
          scales=list(x=list(rot=90)),
          main="Panel: nutrient, Color: genotype")
</pre>


</body></html>
